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[D8020ZBD], Letter from Albert Prescott Marble to Thomas Alva Edison, February 2nd, 1880

Title: [D8020ZBD], Letter from Albert Prescott Marble to Thomas Alva Edison, February 2nd, 1880
Editor's Notes: Get perfect vacuum by filling bulb with mercury, then evacuating. If necessary, support filament by tinfoil which will melt. Marg: "that will not make a vac that will amt to anything. Carbon horseshoe is flexible as paper & dont require tinf."
Author: Marble, Albert Prescott
Recipient: Edison, Thomas Alva
Date: 1880-02-02
Type: Letter
Subject: Incandescent lamp; Vacuum and glass bulb
Folder ID: D8020-F
Microfilm ID: 53:647
Document ID: D8020ZBD
URL: https://edisondigital.rutgers.edu/document/D8020ZBD
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 53

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